package com.example.skycodes.servlet;

import com.example.skycodes.dao.NewsDao;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/newsDel.jsp")
public class AdminDelServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws IOException, ServletException {
        int NewsID = Integer.parseInt(req.getParameter("NewsID"));
        int result = (new NewsDao()).delete(NewsID);
        if(result>0){
            resp.sendRedirect("news.jsp");// 参数是相对网址
        }else {
            req.setAttribute("msg","更新失败");// 错误页面显示的内容
            req.setAttribute("url","news.jsp");// 显示错误信息后要跳转的页面
            req.getRequestDispatcher("WEB-INF/error.jsp").forward(req,resp);
        }
    }
}
